Hanerdun 2 Port USB 3.0 54mm Express Card NEC Chipset Adapter Converter Card Superspeed Suitable For Laptops (or computers containing ExpressCard Slots) 2 USB 3.0 Ports Support USB Series Specifications (Compatible USB 1.1 Full-Speed / 2.0 High-Speed) Support Transfer Rate of 1.5/12/480Mbps/5Gbps Package Contents Include1x USB 3.0 ExpressCard/54mm, 1x USB Power cable, 1x CD driver